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eSL Series
16 Bits DSP
Sound Processor
Product
Specification
DOC. VERSION 1.5
ELAN MICROELECTRONICS CORP.
December 2008

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Trademark Acknowledgments:
IBM is a registered trademark and PS/2 is a trademark of IBM.
Windows is a trademark of Microsoft Corporation.
ELAN and ELAN logo
are trademarks of ELAN Microelectronics Corporation.
Copyright © 2006~2008 by ELAN Microelectronics Corporation
All Rights Reserved
Printed in Taiwan
The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes no
responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN Microelectronics
makes no commitment to update, or to keep current the information and material contained in this specification.
Such information and material may change to conform to each confirmed order.
In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or
other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall
not be liable for direct, indirect, special incidental, or consequential damages arising from the use of such
information or material.
The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and
may be used or copied only in accordance with the terms of such agreement.
ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of
ELAN Microelectronics product in such applications is not supported and is prohibited.
NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY
ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN MICROELECTRONICS.
ELAN MICROELECTRONICS CORPORATION
Headquarters:
No. 12, Innovation Road 1
Hsinchu Science Park
Hsinchu, TAIWAN 308
Tel: +886 3 563-9977
Fax: +886 3 563-9966
http://www.emc.com.tw
Hong Kong:
Elan (HK) Microelectronics
Corporation, Ltd.
Flat A, 19F., World Tech Centre
95 How Ming Street, Kwun Tong
Kowloon, HONG KONG
Tel: +852 2723-3376
Fax: +852 2723-7780
USA:
Elan Information
Technology Group (U.S.A.)
PO Box 601
Cupertino, CA 95015
U.S.A.
Tel: +1 408 366-8225
Fax: +1 408 366-8225
Shenzhen:
Elan Microelectronics
Shenzhen, Ltd.
3F, SSMEC Bldg., Gaoxin S. Ave. I
Shenzhen Hi-tech Industrial Park
(South Area), Shenzhen
CHINA 518057
Tel: +86 755 2601-0565
Fax: +86 755 2601-0500
elan-sz@elanic.com.cn
Shanghai:
Elan Microelectronics
Shanghai, Ltd.
#23, Zone 115, Lane 572, Bibo Rd.
Zhangjiang Hi-Tech Park
Shanghai, CHINA 201203
Tel: +86 21 5080-3866
Fax: +86 21 5080-4600
elan-sh@elanic.com.cn

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Contents
Contents
1 General Description ................................................................................................ 1
2 Features ................................................................................................................... 1
3 Block Diagram ......................................................................................................... 3
4 Selection Table ........................................................................................................ 4
5 Pin Description........................................................................................................ 5
5.1 Power Supply ................................................................................................... 5
5.2 System Control ................................................................................................. 6
5.3 DAC Output ...................................................................................................... 6
5.4 2-stage Amplifier and Touchpad Positioning...................................................... 6
5.5 I/O Port ............................................................................................................. 7
6 Electrical Characteristics........................................................................................ 9
6.1 CPU Voltage – Frequency Graph...................................................................... 9
6.2 Absolute Maximum Ratings ............................................................................ 10
6.3 DC Characteristics.......................................................................................... 10
7 Application Circuits............................................................................................... 12
Product Specification (V1.5) 12.04.2008
iii

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Contents
Specification Revision History
Doc. Version
1.0
1.1
1.2
1.3
1.4
1.5
Revision Description
1. Modified the Pin description in Section 5
2. Modified the Operating temperature Range in Section 6.2
1. Added a comment after the Selection table in Section 4
2. Modified the Application Circuits diagram in Section 7
3. Modified the Sampleing Rate Range in Section 4
1. Added eSL032
2. Modified the Temperature Range in Section 6.2
3. Modified the Power Supply voltage in Section 6.3
4. Added algorithm suuport such as beat tracking, sound
location, speech control, pitch control in Section 2 and 4
1. Added package information in Section 4
2. Modified the Application Circuits in Section 7
1. Modified the PWM current in Section 6.3
2. Added Port C DC Characteristics in Section 6.3
1. Modified the Application Circuits Diagram in Section 7
2. Modified the Algorithm support in Sections 2 and 4
Date
2006/10/31
2007/04/12
2007/08/10
2007/11/10
2008/01/10
2008/12/04
iv Product Specification (V1.5) 12.04.2008

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eSL Series
16 Bits DSP Sound Processor
1 General Description
The ELAN eSL Series IC is a 16-bit DSP Sound Processor with multi-channel speech
and instrument playback. It is based on ELAN 16-bit DSP platform. The series has a
powerful 16-bit DSP architecture that handles most of the speech/melody functions.
Speech and melody can be played back simultaneously. The speech synthesis is
implemented by software, and it supports a wide range of compression bit rates and
various volume levels. The ELAN eSL Series provides real instrument waveform to
obtain good quality melody. The ELAN eSL peripheral includes ADC, RTC, Timer,
WDT, SPI, DAC, PWM, etc.
The ELAN eSL Series IC offers Fast, Sleep, Green, and Slow modes of operation.
The use of Green/Slow mode will further reduce the power consumption. Green
mode also provides RTC function for wake-up purposes.
The ELAN eSL Series enhanced features make it suitable for versatile voice and
sound effect product applications. These enhanced versatile features allow users to
create products with a wide variety of new fancy ideas.
The ELAN eSL Series has extreme high performance in speech application based on
powerful DSP architecture and good algorithm in audio compression. Up to 2-channel
speech with different channel sample rate or a single channel speech + 8-channel
melody are provided.
2 Features
„ MCU
16-bit RISC CPU architecture
CPU clock: 20 MHz @ 3.3V
Programmable PLL
Four CPU operation modes: Fast, Slow, Green, Sleep
Powerful DSP Instruction Set supports multiplication, division, repeat, loop
and soft interrupt instructions.
Saturation mode is supported for multimedia applications.
8 general purpose registers (GPR)
21 interrupt sources with 2-level priority
„ Memory
32K-word Program Memory
2K-word Data RAM
032/128/256/512K-word Data ROM
Product Specification (V1.5) 12.04.2008
(This specification is subject to change without further notice)
1